Include headers when proxying post requests
Support OAuth2 refresh_token exchange
Return error object, instead of causing an error when proxy request is invalid
Catch malformed request errors to /proxy
Catch HTML errors thrown from Yahoo... what were you thinking yahoo developers?
Exception handling
Fix typo

This error message was misspelled.
Merge pull request #6 from reillywatson/patch-1

Fix typo
Merge branch 'feature-post-request-headers' of github.com:tangible/node-oauth-shim into tangible
Merge branch 'tangible'
Include POST content-type in Proxy